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-   -   GPS Navigators, Pinouts, Dumps, Connection, Tips (https://forum.gsmhosting.com/vbb/f672/gps-navigators-pinouts-dumps-connection-tips-1687806/)

blang 07-15-2013 10:54

GPS Navigators, Pinouts, Dumps, Connection, Tips
 
Here will be discussion about GPS navigators dumps, connection, pinouts,

At this moment GPS navigators READ/WRITE supported via DIRECT EMMC connection.

In theory supported all navigators based on EMMC.

Lets start this ;) Hope EASY-JTAG will help repair unbrick lot ot GPS devices.

hans salim 07-15-2013 11:39

what about to remove pin code in garmin navigation?

blang 07-15-2013 11:51

Quote:

Originally Posted by hans salim (Post 9573270)
what about to remove pin code in garmin navigation?

if this garmin emmc based - you can read/write full or part of dump. i think all pins and other information there.
if cloning possible you can write full dump from working one.

CHAUDHRAY ARSHAD 07-15-2013 13:45

wt about tom tom . pin code

blang 07-15-2013 14:05

Quote:

Originally Posted by CHAUDHRAY ARSHAD (Post 9573538)
wt about tom tom . pin code

if this tom tom emmc based - you can read/write full or part of dump. i think all pins and other information there.
if cloning possible you can write full dump from working one.

haute 07-16-2013 20:41

Hello, you are creating a way eMMC finder, like jtag finder?, To find the points CMD, DAT0-to 4, CLK, 1.8 v and 2.8 v?
Where you can find some example information pinouts on Garmin GPSs?
Most I know Garmin GPS: Nuvi, outdoor, edge and forerunner use eMMC.
Greetings ..

NoName® 07-22-2013 00:07

Quote:

Originally Posted by haute (Post 9576851)
Hello, you are creating a way eMMC finder, like jtag finder?, To find the points CMD, DAT0-to 4, CLK, 1.8 v and 2.8 v?
Where you can find some example information pinouts on Garmin GPSs?
Most I know Garmin GPS: Nuvi, outdoor, edge and forerunner use eMMC.
Greetings ..

Best eMMC pinout finder already invented ;-)

http://image.made-in-china.com/2f0j0...ADS7202CA-.jpg

blang 07-22-2013 08:44

Quote:

Originally Posted by haute (Post 9576851)
Hello, you are creating a way eMMC finder, like jtag finder?, To find the points CMD, DAT0-to 4, CLK, 1.8 v and 2.8 v?
Where you can find some example information pinouts on Garmin GPSs?
Most I know Garmin GPS: Nuvi, outdoor, edge and forerunner use eMMC.
Greetings ..

100% way to find emmc direct connect poinout - you can remove EMMC and check pins via tester.

we have emmc direct pinout for 2 navigators 1 mio and 1 garmin. soon will be uploaded to support.

haute 07-22-2013 19:19

Not everyone has an oscilloscope at home to find the points.
But I think they'd be grateful if you put a small tutorial on how to find the points with an oscilloscope eMMC simple.
There are some cheap oscilloscopes, via USB.

On the other hand, I think I have spotted a standard JTAG port all garmin models.
I want to buy the box and check it.
I saw on the specifications of the box, it is possible to make debugger, reading registers, and put breakpoints.
I have not seen any post regarding these features.


A greeting.

spagman 07-27-2013 13:53

Garmin C330
 
Any chance of JTAG on a Nand memory GPS?

I picked up a Garmin C330 for very cheap just so I can start playing with GPS JTAG/ repair... I know it is not Emmc but is there a way we can still use JTAG to read/write ?

The GPS is stuck on boot logo after the original owner tried flashing new maps. I tried Hard reset ..does not work.

Nand memory used is here:
K9W8G08U1M datasheet, Pinout ,application circuits 512m X 8 Bit / 256m X 16 Bit Nand Flash Memory Semiconductor

http://i567.photobucket.com/albums/s...ps1c86d403.jpg

haute 07-27-2013 19:40

spagman, you can put the detailed photos of the two sides of the PCB?
Maybe, I can help to find jtag port.

A greeting.

spagman 07-27-2013 19:55

Here is the other side....I think the pinout is in the first picture though... I don't see anything interesting in this one.

http://i567.photobucket.com/albums/s...psfecf8953.jpg

haute 07-27-2013 22:07

Hello, in the top right of the MicroSD card slot, there are 8-pin row.
1 -
2 - Tms
3 -
4 - Tdi
5 - Gnd
6 -
7 -
8 - Tck

I think the order of the pins is the show.
I think it is a standard JTAG connector on garmin gps.
Jtag_finder Mode Testing and coments us the results.

Another option, is to be the connector on the top left of the PCB.
An 8-pin connector. Check if pin 5 is Gnd.

A greeting.

NoName® 07-27-2013 23:15

Quote:

Originally Posted by haute (Post 9603026)
Hello, in the top right of the MicroSD card slot, there are 8-pin row.
1 -
2 - Tms
3 -
4 - Tdi
5 - Gnd
6 -
7 -
8 - Tck

I think the order of the pins is the show.
I think it is a standard JTAG connector on garmin gps.
Jtag_finder Mode Testing and coments us the results.

Another option, is to be the connector on the top left of the PCB.
An 8-pin connector. Check if pin 5 is Gnd.

A greeting.

is there any info for jtag connection of this device ? init ? architecture ?

spagman 07-27-2013 23:58

No information at all that I can find online. Only ship replacement parts.


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